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Parapellucens
Gen. n.
Type species: aphrasta Collenette.
The two species included in this new genus have similarly unusual
forewing venation, but very different male genitalia. In neither do they
resemble the predominantly New Guinea genus Pellucens Bethune-Baker,
itself in need of revision. Species in all are rather translucent, whitish, with
somewhat rounded forewings.
The forewing venation has R1 arising independently from the cell,
initially converging with Sc, then it diverges to converge with Rs at the point
where R2 branches, then they too diverge. R2 branches off more distally than R5.
All veins arise independently in the hindwing. In typical Pellucens, R1
of the forewing is only very slightly sinuous and is never very close to Sc or
Rs.
The facies of both species is also similar, with greyish patches around
the forewing margin and costa, and a discal grey spot.
Tymbal organs are present in the male abdomen. In the male genitalia of aphrasta
the eighth tergite is highly modified into a setose plate with a triangular
distal margin flanked by two long processes resembling the horns of a cow. The
tegumen is strongly angled, with the uncus set in a relatively posterior
position on it (as illustrated laterally by Holloway (1976: fig. 284)). The
valves are distally bifid, small, with a setose bar uniting them basally. There
is a small saccus. The male of the new species is strikingly different as
described in the diagnosis below.
The female abdomen has a moderate corethrogyne on the seventh segment,
but this segment is not expanded. In the genitalia, the ostium is set in a
semicircular pouch and is narrowly flanked by a pair of longitudinal flanges
that extend posteriorly to a central quadrate lobe. The ductus is very broad
centrally, spindle-shaped, longer than the weakly bilobed bursa. There is no
signum.
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